METEOROLOGY WATWi. (ill 



frroiiping and disciission I lie ((iiintry lias been divided into six cliniatic districts, 

 viz, the New Enj^land an.l .Middle Atlantic States, the South Atlantic and East 

 (Julf Stales, the West (Jiilf and Southern Rocky Mountain Sloi)e. the North Cen- 

 tral States, the Kocky Mountain and Plateau re.cion. and the Pacific coast." 



Data regardinj; location, eiiuiiinient. and climate are summarized for each sta- 

 tion in thes(! districts. 



Forty yeai-s of southern New Mexico climate, J. I). Tinsley (Ncav Mexico 

 shi. Hill. .',11, PI). J/.i. lifis. .7, (hjiiis;. '/(. — "This l»ulletin contains a record of the 

 monthly and annual mean ma.vinnun. mean mininuun, and mean temperatures, 

 liij;hest and lowest temperatures durinj; each month, niunher of days with tem- 

 !>erature of '.\'2,° or less, mnni»er of days witli tem])erature of (JO" or less, precipi- 

 tation, relative humidity, condition (d" the sky. and wind movement for each 

 month and year from IS'.VI to IDO"), as observed at the New Mexico Experiment 

 Station. .VIso, temperature and I'aiufall records for other stations in the 

 ALesilla \'all(>y for most of the years between 1851 and 1S!)0. 



"The data have a f!;eneral application to those portions of southern New 

 .Mexico havinj,' an altitude less than 4,0(10 ft. 



"The annual mean maxiuunu temperature for 14 years is 70.8°. The animal 

 mean nuninnun for 13 years is 41.4° and the annual mean for 40 years is 01.0°. 

 The lowest temperature in 14 years was 1° in December, 189.5, and the highest, 

 100", which has occurred several times. Temperatures of 10° and less are not 

 unconnnon at night in December, January, and February. 



"The mean annual range of temperature is 35.4°. The absolute monthly 

 range is from 45° to 75°. The greatest annual range was 101° in 1895. 



" The mean number of days in a year when the temperature does not rise 

 above 00° is 50 and of the days when the temperature falls below 32° in the 

 •lA hours is TJl. 



" The mean annual rainfall is 8.8 in. The smallest was 3.5 in. in 1873, and 

 the largest. 17.1 in. in 190.5. The most of the rain falls during July, August, and 

 September. Snow occurs, but the amount is too small to be of economic im- 

 portance. 



" The records scarcely sustain the idea that there has been a permanent 

 increase in the rainfall. 



" The relative hunudity is low, the animal mean being probably about 40 per 

 cent. The mean monthly wind movement is about 5,000 miles, 7 miles an hour. 

 The mean number of clear days per year is 225, part cloudy 91, and cloudy 49. 

 The evaporation is 5 to 6 ft. per year." 



World weather, J. Eliot (8ci. Amcr. Sui)., 62 (1006), A'o. IGl.'f. pp. 2.-,8(J.2, 

 2J(S6'J). — This is a quotation of a review of a memoir by this author, in which the 

 belief is expressed that the results of investigations reported in the memoir 

 have an important bearing on the practical work of forecasting. The statement 

 is made that the investigations are of special importance because novel methods 

 of studying air movement on a large scale were employed, "leading to residts 

 not merely unexpected, but opposed to the fundamental principles which have 

 formed the chief stock-in-trade of meteorologists during the past fifty yeai's." 



Monthly Weather Review {Mo. Weather Rev., SJf {1906), Nos. 9, pp. Jf05-J,o.>, 

 fif/s. 9, charts 7; 10, pp. J/SS-oOJf, figs. 7, charts 7).— In addition to the usual 

 reports on fortn-asts. warnings, weather and crop conditions, meteorological 

 tables and rliarts for the i. ninths of September Jind October, 1900, monthly re- 

 \ lew of the progress of climatolog.v throughout the world, recent i)apers bearing 

 i>u meteorolog.v. recent additions to the Weather P.ureau library, etc., these 

 numbers contain the following articles and notes: 



No. 9.- — The Relation of the Weather to the Flow of Streams, by F. H. Bran- 

 denburg ; Phenomenal Rainfall at Guinea. Va. (illns.). by E. A. Evans; Tlie 



